The Study of an Economic Hybrid TCSC Structure

Abstract:

The capability to damp sub-synchronous oscillations of single-phase TCSC, two-phase TCSC, three-phase TCSC is comparatively studied in this paper. SVR (Synchronous Voltage Reversal) is used as the control strategy of these three schemes. And IEEE first benchmark model is taken as the simulation example. Generator power, torques and LVUR (Line Voltage Unbalanced Voltage) are simulated. The results show that all the three schemes can effectively suppress SSO, but compared with single-phase and three-phase TCSC, the convergence rate of generator torques in the two-phase TCSC scheme is slower, thus its damping effect is worse, while single-phase and three-phase nearly has equal damping capacity. After the three-phase fault, the steady value of LVUR under three schemes can all meet the requirements of national standard in China. Through the comparison between these three schemes, it can be concluded that single-phase TCSC is a new structure which has great potential to apply to practical projects, but further theoretical analysis and much more simulation should be done to verify.

• Periodical: Applied Mechanics and Materials (Volume 472)
• Pages: 1042-1046
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.472.1042
• Online since: January 2014
• Authors: Tian Mei Chen, Xiang Ning Xiao, Jian Zhang, Chao Luo
• Keywords: Economic, Hybrid TCSC, LVUR, SSO, SVR

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